280187859

素因数分解:

$3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{233}}^1\times {\mathrm{331}}^1$

素因数の和:747

約数の個数: 32

約数和(自身を含む): 432566784

約数和(自身を除く): 152378925

約数列:

[1, 3, 7, 21, 173, 233, 331, 519, 699, 993, 1211, 1631, 2317, 3633, 4893, 6951, 40309, 57263, 77123, 120927, 171789, 231369, 282163, 400841, 539861, 846489, 1202523, 1619583, 13342279, 40026837, 93395953, 280187859]

約数ペア:

[(1, 280187859), (3, 93395953), (7, 40026837), (21, 13342279), (173, 1619583), (233, 1202523), (331, 846489), (519, 539861), (699, 400841), (993, 282163), (1211, 231369), (1631, 171789), (2317, 120927), (3633, 77123), (4893, 57263), (6951, 40309)]